Abu Umamah (May Allah be pleased with him) reported:The Messenger of Allah (Peace Be Upon Him) made many supplications which we did not memorize. We said to him: “O Messenger of Allah! You have made many supplications of which we do not remember anything.” He said, “Shall I tell you a comprehensive prayer? Say: O Allah, I beg to You the good which Your Prophet Muhammad (Peace Be Upon Him) begged of You; and I seek refuge in You from the evil where from Your Prophet Muhammad (Peace Be Upon Him) sought refuge. You are the One from Whom help is sought and Yours is the responsibility to communicate (the truth). There is no power or strength except with Allah the Exalted, the Great.“

Hadith No. 1494, At-Tirmidhi

Commentary: For those who do not remember many prayers, or cannot remember them, this is the best supplication to make. This shows part of Allah’s Mercy upon His slaves and part of the easiness of practising Islam.